boynton



(No Model.) 2 sheets-sheet 9.4

11. A; BoY'NT'oN. SEQTIONAL STEAM BOILER? 110. 491,979. Patented Feb. 21, 1893.

M@ ,Mam-www y Y 5y y f MWW NTTED STATES PATENT OFFICE.

NATHANIEL A. BOYN TON, OF NEW YORK, N. Y., ASSIGNOR TO THE BOYN TON FURNACE COMPANY, OF SAME PLACE. l"

SECTIONAL STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 491,979, dated February 21, 1893. f

Application iiled June 2,1892. Serial No. 435.239. (No model.)

To all whom it may concern.-

Be it known that I, NATHANIEL A. BoYN- TON, a citizen of the United States, and a resident of the city of New York, in the county of New York, in the State of New York, have invented a new and useful Sectional Steam- Boiler, of which the following is a correct description.

l The invention relates generally to that class Io of boilers which are composed of transverse vertical sections, as in United States Patents No. 396,802; N o. 407,850, and No. 408,455, issued to me, respectively on the 29th day of f January, 1889; on the 30th day of July, 1889;

I5 and on the 6th day of August, 1889; and it relates particularly to certain improvements whereby the apparatus is adapted equally for use in establishing and maintaining a circulation of hot-Water, or as a source of steam- 2o supply under low-pressure, for a system of steamradiators,-located wherever necessary in the several stories, and throughout the various apartments of the structure in which the apparatus is placed.

z 5 The invention consists in various novel parts and in various novel combinations of parts in a sectional steamboiler; whereby the steam drum is in direct continuation of the water-space; whereby each of the several in 3o termediate transverse sections is in communication with the contiguous section, only at its base, and at its upper extremity; whereby the use of 'manifolds, or other exterior communications between the sections is rendered 3 5 unnecessary; whereby a portion of the front closing or covering section is adapted to constitute arising-flue; whereby a transverse section behind and contiguous to the fuel-chamber, is adapted to constitute a rising-fine, through which the volatile products of combustion pass from the combustion chamber to a horizontal smoke-flue which overlies such combustion chamber; wherebya rear closing or covering section is adapted to receive the condense of the circulating-system of pipes and radiators, at a point coincident with an interior water-space or chamber,.and. thusA avoid'the production of unequal" circulation and unequal heating withinrsuch Iinterior 5o water-space; and whereby variousother iml ter and steam chamber of the section, and a portant advantages are secured.

In the drawings;-Figure 1 represents a perspective elevation of the apparatus. Fig.

2 represents a vertical, longitudinal central section of the same. Fig. Srepresentsafront elevation, the door-section or front closing section having been removed. Fig. 4represents an elevation of the rising-liuc section detached. Fig. 5 represents a rear elevation. Fig. 6 is a detail, sectional plan, in the line 6o :iz-m, in Fig. 2.

As will be best seen in Figs. l and 2, the front or closing section A, of the boiler A, has at each side a vertical water chamber or column a2, the two columns being in communication at their foot through a transverse horizontal water-way 0,3, whichv is surmounted by any suitable automatic draft regulator dr the vertical extent of which adapts it to fill the space between the plane of the grate bars 7o and the lower extremity of the frame of the fuel-supply opening. A similar horizontal water-way a4, connects the two columns at. about their niidneight, and occupies the space between the fuel-supply opening and the Ilueclearing opening. Above the clearing opening of this section and extending therefrom to the top of the section,is a water and steam chamber a5. It will be observed that this front section is of relatively small extent from 8o front to rear, and that its clearing-opening, between the closing door of the clearing opening and the next succeeding section, provides avertical flue for the passage of the products of combustion from the lower smoke flue f2, to the upper smoke flue f3.

In rear of the front door-section or closing section A', are arranged a series of intermediate water and steam sections A2, A3, A4, A5, A6, of uniform construction, and in numbers 9o to adapt them to form the side walls of the fuel-chamber, which chamber may be of any desired longitudinal extent. Each of these sections has side water-columns wc, a transverse water-way to2, above the fuel chamber F, a second transverse water-way w3, above the lower smoke-flue f2; a water and steam chamber co4, above the upper smoke iiue f3; front and rear openings o, o2, in the lower-.extremity of each water-column; front and rear roo openings 03, 04, in the upper extremity or wacentral, vertical passage w, which extends from the transverse water-way to2, to the water and steam chamber 104.

Behind the series of sections A2, A3, rbc., and contiguous to and forming the rear wall of the fuel chamber F, is the rising flue-secsection A7, which like the described intermediate sections A has right and left 'exterior chambers or water columns wc, but which at its foot, intermediately of the columns wc, has a transverse water-way or chamber al, which in a vertical plane is from its center curved upwardly and outwardly right and left, and which from its rear surface is sloped downwardly toward the grate.

Above the plane of the lower smoke-fluef 2, is a transverse water-wayuy, Awhich is coincident with the ways w3, but, as seen in the detail, Fig. 6, is provided with a rectangular smoke-opening so, in which is pivoted any suitable damper d, which has an operatinghandle dh (Figs. l and 3) and which when closed bears upon recessed seat rs, formed in the rear or closing section of the boiler. Above the upper smoke-flue the section is identical in construction with the intermediate sections, already described.

The rear closing-section A8, is in its main lower portion continuous and ilnperforate, but in its outer plate it receives, at its central lower extremity the return-pipe rp, of the boiler; and in its upper portion below the water and steam-dome section, and coincidently with the upper smoke-flue f3, it has an opening e0, to receive an exit-pipe ep, which at its inclined outer extremity has an ordinary, inclined check-draft door cd, which is suitably connected with the automatic-regulator dr already referred to.

It will be understood that upon opening the check-draft damper cd, and the damper d, in the rising-flue section, the horizontal flue f3, will be accessible for clearance, from the rear as well as from the front, the accumulations being discharged directly downward, into the rear portion of the fuel-chamber.

The base or ash-pit section B,is of the rectangular form represented; its side and rear 1 walls having top, bottom and end iianges Z22, b3, b4, and br-the two .former being strengthened by curved double ribs r which at suitable intervals are provided between the horizontal iianges; its front being provided with an ash-opening and a door ad, and its side, near the front, with a draft-opening and an automatically-actin g draft-door del.

As will be very clearly seen in the first three iigures of the drawings, the several sections are secured together by means of rods r', r2, rbc. which extend through the longi-v tudinal water-spaces, and through the longitudinal steam-dome. At each end the rods are extended through a closing-plate r3, which is iitted upon the coincident opening, and which in its outer portion is provided with a 1'ecess,to receive a suitable packing, the whole,

when in place being secured by means of nuts r4.

Persons conversant with the art to which the invention'relates will understand that the products of combustion will ordinarily pass from the rear of the-combustion-chamber F', upwardly through the rising flue rf, in the section A7, thence through the tlue f2 to the rising-flue contiguous to the clearing-door a, and thence through the flue f3, to the smokeexit-opening.

Vater, introduced from any convenient source, at the base of any of the intermediate sections, will at that point tind communication with the contiguous sections, through their lateral openings, already described; and steam, as generated, will find its way to the steam-dome, and thence through the several conducting-pipes to the radiators in the various apartments,-whence, las condensed, it will be returned, by the pipe frp, to the lower portion of the rear section, and behind the protected portion of the rising-flue section, so that no irregularity in heating and circulating will be produced thereby.

Ilaving thus described my invention, what is claimed is l. A steam-boiler which in its main portion embraces a series of vertically-placed transversely-extending sections, each of which is composed essentially of a lower bifurcated portion which is closed at front and at rear except at its foot, which is open at front and at rear for open and direct communication with each contiguous section; and of an upper or flue portion which is integral with the lower bifurcated portion and which is mainly closed at front and at rear, but at its upper extremity which constitutes the steam-space of the section,is open at front and at rear, to form communication with the v'adjacent sections, and to form jointly with such sections a steam-dome which extends longitudinally of the boiler, from end to end thereof.

2. A steam-boiler which in its main portion, coincident with the fire-pot, embraces a series of verticallyplaced, transversely-extending sections, each of which iscomposed of a lower bifurcated portion which be'strides the fuel-chamber, andan upper portion which is provided with aseries'of horizontal smokeopenings, the sections being closed at front and at rear, except at their lower extremities which are open at front and at rear for the direct movement of water from section to section, and at their upper extremity, above the upper smoke-openings, which is open at front and at rear to form with the remaining sections a continuous longitudinal steam-dome, which is common to and receives steam from all the sections of the boiler; substantially as set forth.

3. A sectional steam-boiler which behind the plane of the fuel-chamber is provided with a transversely -extending section, which in its lower portion has a transverse water-cham- IOO IIO

ber, which :in its midheight portion is unobstructed, to constitute a rising-ii ue for the products of combustion; which directly above the midheight portion is provided with a transverse-water-cham'ber, or passage which constitutes a part of the lower portion of an upper horizontal smoke-passage; and which in its upper portion, above such upper smokepassage has a space which is adapted to contain water and steam, and is open at front and at rear, to form in connection with the contiguous sections a continuous longitudinal steam-chamber or dome.

4. A sectional steam-boiler which embraces a series of vertically-placed transversely-extending sections each of which is composed ot a single casting which in its lower portion is bifurcated to bestride the fuel-chamber, and each of which in `its midheightiand upper portions has a longitudinally-extending smokeopening,one or more andaVertically-placed transversely-extending section directly behind the feed chamber which in its lower portion has a transverselyextending; portion, which in its midheight portion is unobstructed, to permit upward movement of the volatile products ot combustion,-and which in its upper portion has a smoke-opening, one or more, through which the products of combustion pass to an exit-opening in the rear or closing section of the boiler;-the several sections being each closed at all points, except in their upper and lower extremities, which are open at'frout and at rear, to form in the lower portion of the boiler, alongitudinal water-passage, and to form in the upper portion of the boiler alongitudinally-extending steam-'chamber; substantially as described.

5. A sectional steam-boiler which embraces a transverse rising-flue section, directly behind the fuel-chamber sections, such risingtlue section having at each side of its tluespace, a vertical water-column or chamber, and having also a horizontal water-passage at the lower extremity of the section, between the two columns; and a rear .closing or covering section which at its lower extremity, at a point coincident with the horizontal passage of the rising-flue section, receives the returnpipe of the boiler.

. 6. A steam-boiler which embraces afront or covering section which is provided with an unobstructed smoke-passage or rising-line; a series of bifurcated sections,'of uniform construction, each of which bestrides the fuelchamber; a rising-flue section arranged directly behind'the series of bestriding sections, and provided atits foot with atransverselyextending water-chamber or passage; and a rear closing or covering-section which is provided with a smoke-exit opening, and which receives the return-pipe ofthe steam-circuit.

NATHANIEL A. BOYNTON. Witnesses: p v

WILLLAM RITCHIE, CHAS. M. BENEDIOT. 

